sl280v
Variable-Speed, Two-Stage Gas Furnace
The quietest furnace in its class
20-Year Limited Warranty on Heat Exchanger. 10-Year Limited Warranty on covered components.
Heating Savings
Features
Variable speed keeps you constantly comfortable
Variable speed keeps you constantly comfortable
A
variable-speed blower maintains comfort with an adjustable flow of air,
preventing temperature swings and blasts of air when your system starts.
Efficiency you can feel good about
An energy rating of 80% AFUE means the SL280V can significantly reduce your heating costs, compared to an older furnace.
A more efficient home environment helps contribute to a better global environment.
Feel good this winter and all year long knowing you can save energy and money without compromising on comfort.
Best furnace I have ever had. It is super quiet.
Not a lot of sound, just a lot of perfect air
Because it’s designed with SilentComfort™ technology, the SL280V operates with very low noise levels.
Two-stage heating for always-on performance
While
most furnaces are either off or on, the SL280V can actually deliver two
different levels of heat based on how cold it is outside. This lets it fine-tune fuel use to carefully
match your comfort, keeping your home warm and energy-smart.
"The variable speed keeps the temperature very consistent throughout the house, and is much more quiet than I am used to. Gas and electric bills are down."
Everything comes together perfectly
Together with other products from the Dave Lennox Signature® Collection, the SL280V takes comfort to an entirely new place.
Ratings & Reviews
See what other customers are saying about
SL280V Variable-Speed Gas Furnace
5/5
This made such a difference
December 01, 2012My house after upgrading to Lenox is now more evenly heated in a much shorter run time. Amazing and toasty warm (even in southern california).
Yes, I recommend this product.
Redondo Beach, CA
Age: 35 to 44
Gender: Female
Reason for Replacement: Planned
5/5
4/5
5/5
5/5
5/5
Very satisfied customers
January 02, 2026Our furnace was the original from when the house was built. One day it just gave up. The new Lennox furnace was installed the same day we called Four Seasons. The furnace is great. No strange noises like the old one. We’re happy with the purchase. No issues to complain about.
Yes, I recommend this product.
Age: 55 - 65
Gender: Female
Reason for Replacement: Emergency
5/5
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Resources
Product Literature
Glossary of terms
-
- Annualized Fuel Utilization Efficiency (AFUE)
A measure of furnace heating efficiency. The higher the AFUE, the more efficient the furnace.
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- Dual Fuel
A comfort system that pairs an electric heat pump with a gas furnace and alternates between the two fuel sources to maximize comfort and efficiency.
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- Gas Furnaces
A gas furnace is the part of an HVAC system that converts natural gas or propane into high-temperate heat for the home.
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- iComfort®–Enabled
An iComfort®–enabled product is one that is designed to work with an iComfort® programmable thermostat as part of an advanced home comfort system. When you choose a heating, cooling or humidity control product that’s iComfort-enabled, you’re ensuring a higher level of home comfort and control.
Products that add to the performance of SL280V Variable-Speed Gas Furnace
- * Based on sound pressure levels during steady-state, high-fire operation of Lennox SL280UHV070V36A and leading competitive units at mid-point temperature rise and minimum external static pressure when set up per Section 4.5.3 of AHRI 260-2001.
This furnace does not meet the South Coast Air Quality Management District (SCAQMD) Rule 1111 NOx emission limit (14 ng/J) and cannot be installed in the SCAQMD.
If installed in San Joaquin Valley Air Pollution Control District (SJVAPCD) only: This furnace does not meet the SJVAPCD Rule 4905 NOx emission limit (14 ng/J), and thus is subject to a mitigation fee of up to $450.
